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Cheap flights from St. Louis to Canada from C$ 121

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from St. Louis to Canada departing on 4/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from St. Louis to Canada

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:22 p.m. - 11:20 p.m.
STL
-
YYZ
25h 58m2 stops
Multiple Airlines Logo
7:10 a.m. - 11:33 p.m.
YYZ
-
STL
17h 23m1 stop
C$ 295Multiple Airlines
Wed, 21 Jan - Thu, 29 Jan
Multiple Airlines Logo
8:22 p.m. - 11:20 p.m.
STL
-
YYZ
25h 58m2 stops
Multiple Airlines Logo
7:15 a.m. - 11:33 p.m.
YYZ
-
STL
17h 18m1 stop
C$ 305Multiple Airlines
Wed, 21 Jan - Tue, 27 Jan
Air Canada Logo
4:05 p.m. - 12:06 a.m.
STL
-
YHZ
6h 01m1 stop
Air Canada Logo
9:00 a.m. - 3:29 p.m.
YHZ
-
STL
8h 29m1 stop
C$ 473Air Canada
Mon, 2 Feb - Fri, 6 Feb
Air Canada Logo
4:05 p.m. - 12:06 a.m.
STL
-
YHZ
6h 01m1 stop
Air Canada Logo
6:55 a.m. - 3:29 p.m.
YHZ
-
STL
10h 34m2 stops
C$ 484Air Canada
Mon, 2 Feb - Fri, 6 Feb
United Airlines Logo
4:49 p.m. - 2:31 p.m.
STL
-
YHZ
19h 42m2 stops
United Airlines Logo
3:15 p.m. - 10:58 p.m.
YHZ
-
STL
9h 43m2 stops
C$ 495United Airlines
Mon, 2 Feb - Fri, 6 Feb
WestJet Logo
2:18 p.m. - 9:40 p.m.
STL
-
YHZ
5h 22m1 stop
WestJet Logo
8:30 a.m. - 6:02 p.m.
YHZ
-
STL
11h 32m2 stops
C$ 544WestJet
Thu, 18 Jun - Sun, 28 Jun
WestJet Logo
1:18 p.m. - 1:41 a.m.
STL
-
YHZ
10h 23m2 stops
WestJet Logo
6:00 a.m. - 4:42 p.m.
YHZ
-
STL
12h 42m2 stops
C$ 559WestJet
Tue, 3 Feb - Tue, 10 Feb
Alaska Airlines Logo
2:50 p.m. - 9:14 p.m.
STL
-
YLW
8h 24m1 stop
Alaska Airlines Logo
4:07 p.m. - 10:46 p.m.
YLW
-
STL
28h 39m1 stop
C$ 608Alaska Airlines
Sun, 18 Jan - Thu, 22 Jan
Alaska Airlines Logo
7:00 a.m. - 10:47 a.m.
STL
-
YEG
28h 47m1 stop
Alaska Airlines Logo
11:37 a.m. - 11:59 p.m.
YEG
-
STL
11h 22m1 stop
C$ 620Alaska Airlines
Mon, 9 Mar - Mon, 16 Mar
United Airlines Logo
6:30 a.m. - 8:09 p.m.
STL
-
YLW
15h 39m2 stops
United Airlines Logo
5:20 a.m. - 9:13 p.m.
YLW
-
STL
13h 53m2 stops
C$ 886United Airlines
Sun, 18 Jan - Thu, 22 Jan

American Airlines flights from St. Louis to Canada

Our best American Airlines deals on St. Louis to Canada flight tickets
American Airlines
4 Feb
STL6:00 a.m.Lambert-St Louis
8h 08m
1 stop
YUL3:08 p.m.Montreal Pierre Elliott Trudeau Intl
11 Feb
YUL3:50 p.m.Montreal Pierre Elliott Trudeau Intl
18h 44m
1 stop
STL9:34 a.m.Lambert-St Louis
C$ 582
Find similar
American Airlines
26 Feb
STL6:00 a.m.Lambert-St Louis
8h 05m
1 stop
YUL3:05 p.m.Montreal Pierre Elliott Trudeau Intl
2 Mar
YUL3:55 p.m.Montreal Pierre Elliott Trudeau Intl
18h 34m
1 stop
STL9:29 a.m.Lambert-St Louis
C$ 589
Find similar
American Airlines
3 Jan
STL6:56 a.m.Lambert-St Louis
13h 47m
1 stop
YYZ9:43 p.m.Toronto Pearson Intl
8 Jan
YYZ11:35 a.m.Toronto Pearson Intl
7h 39m
1 stop
STL6:14 p.m.Lambert-St Louis
C$ 697
Find similar

Air Canada flights from St. Louis to Canada

Our best Air Canada deals on St. Louis to Canada flight tickets
Air Canada
2 Feb
STL4:05 p.m.Lambert-St Louis
6h 01m
1 stop
YHZ12:06 a.m.Halifax Intl
6 Feb
YHZ9:00 a.m.Halifax Intl
8h 29m
1 stop
STL3:29 p.m.Lambert-St Louis
C$ 473
Find similar
Air Canada
2 Feb
STL4:05 p.m.Lambert-St Louis
6h 01m
1 stop
YHZ12:06 a.m.Halifax Intl
6 Feb
YHZ6:55 a.m.Halifax Intl
10h 34m
2 stops
STL3:29 p.m.Lambert-St Louis
C$ 484
Find similar
Air Canada
18 Jun
STL7:25 a.m.Lambert-St Louis
8h 51m
2 stops
YHZ6:16 p.m.Halifax Intl
28 Jun
YHZ5:45 a.m.Halifax Intl
8h 36m
2 stops
STL12:21 p.m.Lambert-St Louis
C$ 497
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from St. Louis to Canada that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 96,600 searches. Data last updated 21 December 2025.
Use the filters below to find and compare flights from St. Louis to Canada that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 21/1

8:22 p.m.-11:20 p.m.

2 stops25h 58m

Toronto Pearson Intl

Thu 29/1

7:10 a.m.-11:33 p.m.

1 stop17h 23m

C$ 295

St. LouisToronto

STL - YYZ

STLYYZ

Lambert-St Louis

Wed 21/1

8:22 p.m.-11:20 p.m.

2 stops25h 58m

Toronto Pearson Intl

Tue 27/1

7:15 a.m.-11:33 p.m.

1 stop17h 18m

C$ 305

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Mon 2/2

4:05 p.m.-12:06 a.m.

1 stop6h 01m

Halifax Intl

Fri 6/2

9:00 a.m.-3:29 p.m.

1 stop8h 29m

C$ 473

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Mon 2/2

4:05 p.m.-12:06 a.m.

1 stop6h 01m

Halifax Intl

Fri 6/2

6:55 a.m.-3:29 p.m.

2 stops10h 34m

C$ 484

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Mon 2/2

4:49 p.m.-2:31 p.m.

2 stops19h 42m

Halifax Intl

Fri 6/2

3:15 p.m.-10:58 p.m.

2 stops9h 43m

C$ 495

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Thu 18/6

2:18 p.m.-9:40 p.m.

1 stop5h 22m

Halifax Intl

Sun 28/6

8:30 a.m.-6:02 p.m.

2 stops11h 32m

C$ 544

St. LouisHalifax

STL - YHZ

STLYHZ

Lambert-St Louis

Tue 3/2

1:18 p.m.-1:41 a.m.

2 stops10h 23m

Halifax Intl

Tue 10/2

6:00 a.m.-4:42 p.m.

2 stops12h 42m

C$ 559

St. LouisKelowna

STL - YLW

STLYLW

Lambert-St Louis

Sun 18/1

2:50 p.m.-9:14 p.m.

1 stop8h 24m

Kelowna

Thu 22/1

4:07 p.m.-10:46 p.m.

1 stop28h 39m

C$ 608

St. LouisEdmonton

STL - YEG

STLYEG

Lambert-St Louis

Mon 9/3

7:00 a.m.-10:47 a.m.

1 stop28h 47m

Edmonton

Mon 16/3

11:37 a.m.-11:59 p.m.

1 stop11h 22m

C$ 620

St. LouisKelowna

STL - YLW

STLYLW

Lambert-St Louis

Sun 18/1

6:30 a.m.-8:09 p.m.

2 stops15h 39m

Kelowna

Thu 22/1

5:20 a.m.-9:13 p.m.

2 stops13h 53m

C$ 886

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Canada from

How to get the cheapest flight ticket from St. Louis to Canada

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Canada?

In general, April is the cheapest month to fly from St. Louis to Canada. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around C$ 433. If you’re not able to fly to Canada in April, then June is your next best option. Flight prices from St. Louis to Canada during June average around C$ 541.

What is the cheapest day to depart on your flight to Canada?

Our data shows that Friday is the least expensive day to fly to Canada. Tickets to fly out on this day can be as low as C$ 579. If your travel schedule is flexible, try to avoid departing on a Wednesday because tickets tend to average around C$ 898. These prices are subject to change though, so be sure to set up a Price Alert for flights to Canada.

What is the cheapest time of day to depart on your flight to Canada?

According to our data, the cheapest time of day to fly to Canada is at noon. momondo users have found flights departing from St. Louis to Canada at noon for as low as C$ 591. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the morning is when there is more demand to fly to Canada, so prices are often more expensive at around C$ 766 per ticket.

What is the cheapest Lambert-St Louis to Canada flight route?

Fly from Lambert-St Louis to Toronto Pearson Intl for the best Lambert-St Louis - Canada flight prices

How far in advance should I book a flight to Canada?

You are more likely to see cheaper flights to Canada from St. Louis when booking weeks ahead of your departure date. In general, you can expect to find flights to Canada for around C$ 701 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Canada from St. Louis for as low as C$ 305 on momondo.

What cabin class options are available on Lambert-St Louis to Canada flights?

There is only 1 cabin class available to choose from on Lambert-St Louis to Canada flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on St. Louis to Canada flights?

You could potentially save up to 44% on your flight if you consider stops on a St. Louis to Canada flight.

Cheap St. Louis to Canada flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from St. Louis to Canada

Fastest flight time

1h 51m

Direct flights

Every day

Airports in Canada

513 airports
The fastest flight from St. Louis to Canada takes 1h 51m
Direct flights go from St. Louis to Canada every day.
There are 513 airports in Canada. From St. Louis there are direct flights to Montreal Pierre Elliott Trudeau Intl (YUL), Toronto Pearson Intl (YYZ).
Search flight deals

  • When did momondo last update prices for flights from Lambert-St Louis Airport to Canada?

    Prices for flights from Lambert-St Louis Airport to Canada are updated daily.

  • How many operators does momondo search for flights from Lambert-St Louis Airport to Canada?

  • How old do you have to be to fly from Lambert-St Louis Airport to Canada?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lambert-St Louis Airport to Canada.

  • What documentation or ID do you need to fly to Canada?

    The travel and health documents you'll need for your trip to Canada may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Canada. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from St. Louis to Canada?

Best airlines flying from St. Louis to Canada

Compare and see reviews for airlines that fly from St. Louis to Canada with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom C$ 301Free CancellationRating
7.1
10,549 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from St. Louis to Canada?

It is quick and easy to find St. Louis to Canada flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Canada that suits you.

Can I find flights from St. Louis to Canada with flexible booking policies on momondo?

Yes. All flights to Canada from St. Louis on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from St. Louis to Canada?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from St. Louis to Canada.

I’m not ready to book a flight from St. Louis to Canada right now. Can momondo alert me if prices change?

If you are not ready to book a flight from St. Louis to Canada now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Canada and let you know when they change.

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Find better results for your trip to Canada

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